Santa Monica College (SMC)

INLAND STABILITY & MARINE LAYER BURN-OFF

Live AI Coastal Briefing

This morning, Thursday, April 9, we're waking up to a dominant marine layer with 100% cloud cover, which is expected to burn off by late morning, revealing a beautiful day ahead for beach visitors. As the morning progresses, the clouds will part, and we can expect a rapid transition from cool, damp fog to direct, intense sunlight. This makes for a great day to plan outdoor activities, whether you're a surfer, runner, or just looking to soak up some sun.



The ocean conditions are looking great for surfers, with wave heights at 2.8 feet, making it a fun day for longboarders to catch some waves. The water temperature is a comfortable 66°F, making a spring suit a good choice, although a full wetsuit may be preferred for longer sessions. With a low rip current risk, standard beach safety applies, and it's always a good idea to check the local tide chart for low and high tide times. The swell is at standard conditions, making it a great day to get out and enjoy the water.



For runners and cyclists, the morning conditions are ideal, with a gentle 4mph wind from the NNE and the marine layer providing a cool, overcast cover. With a low UV index of 0, there's no need for special protection just yet, but be sure to apply sunscreen as the UV builds throughout the morning. The moderate air quality, with an AQI of 80, may require sensitive individuals to limit their prolonged outdoor exercise. Beach volleyball, paddleboarding, and tennis are all great options for the morning, before the onshore breeze picks up in the afternoon, making the morning window the best time to plan these activities.



As the afternoon develops, the marine layer will have burned off, and we can expect plenty of sunshine, although the pressure at 29.75 inHg indicates slightly low pressure, which may lead to unsettled conditions. Heading into this evening, it's a great time to reflect on the day's activities and plan for another beautiful day tomorrow. With no rain expected and plenty of sunshine, it's shaping up to be a fantastic day, so get out there and enjoy it – whether you're surfing, running, or just soaking up the sun, make the most of this beautiful Thursday, April 9.



Briefing issued 6:30 AM, Thursday, April 9. Live conditions update continuously above.